Sulfur Dioxide (SO2) Monitoring Articles

  • Why You Should Consider a Sample Conditioning Unit for Taking Low NOx Measurements When Using a Portable Emissions Analyzer

    Using state-of-the-art technology, we here at E Instruments create high-quality portable industrial combustion gas and emissions analyzers that are capable of taking precise, low NOx measurements for both NO and NO2. In particular, we recommend our sample conditioning unit to those of you who need to take accurate, low NOx or SO2 ...

  • Case study - Ambient air monitoring by PID detection - airTOXIC

    First Case THE PROBLEM: How to monitor air quality from 1 spot in 12 different towns ? THE SOLUTION The airToxic PID with the communication protocol MODBUS allows to transfer the results of the 12 instruments to a central room RESULTS airToxic PID allows to have an improved ...


    By Chromatotec Group

  • Two Detector Solution to Analyzing Sulfur

    Sulfur compounds are reactive, corrosive to pipes, and destructive to catalysts in petroleum refineries. Sulfur emission are strictly regulated globally. When released into the atmosphere sulfur dioxide converts to sulfuric acid resulting in adverse effects on human health and the environment. Sulfur detection is found useful in many other industries; therefore, detection of sulfur compounds in ...


    By Restek Corporation

  • Performance of the low-emission flare

    Job report / Elbisgraben (Bale / Switzerland) The summer of 1992 had finally arrived. The 5MW low emission furnace in the district heating station Liestal was ignited, supplied with landfill gas from Elbisgraben landfill. Since then the plant has been running continuously and the comprehensive measurements taken, verify that all targets aimed at have been achieved: plant ...


    By Hofstetter BV

  • Case study - Doe Run Peru – Improving productivity with environmental responsibility

    Doe Run Peru aims to become a preferred global provider of premium metals and services, while at the same time working to operate in a socially and environmentally responsible way. The mining and metals company employs roughly 4,000 people at its operations in Peru’s central Andes. The company has run the La Oroya metallurgical complex since 1997 and the Cobriza mine in the Huancavelica ...


    By Beltran Technologies, Inc.

  • Fenton degradation of Cartap hydrochloride: identification of the main intermediates and the degradation pathway

    The advanced oxidation of Cartap hydrochloride (Cartap) promoted by the Fenton system in an aqueous medium was investigated. Based on total organic carbon, chemical oxygen demand and high-performance liquid chromatography, the oxidation of Cartap is quite efficient by the Fenton system. Its long chain is easily destroyed, but the reaction does not proceed to complete mineralization. Ion ...


    By IWA Publishing

  • Fenton degradation of Cartap hydrochloride: identification of the main intermediates and the degradation pathway

    The advanced oxidation of Cartap hydrochloride (Cartap) promoted by the Fenton system in an aqueous medium was investigated. Based on total organic carbon, chemical oxygen demand and high-performance liquid chromatography, the oxidation of Cartap is quite efficient by the Fenton system. Its long chain is easily destroyed, but the reaction does not proceed to complete mineralization. Ion ...


    By IWA Publishing

  • Monitoring pollution in remote regions of Africa case study

    Customer: The South African Weather Service (SAWS) Ecotech’s Distributor: SI Analytics (Pty) Ltd Application: Ambient Air Monitoring in Karoo and Waterberg regions of South Africa Background: Carbon Monoxide and Sulfur Dioxide are among the major pollutants found in cities around the ...


    By Ecotech Pty Ltd

  • National Ambient Air Quality Standards Update

    You have seen ALL4 documenting the corresponding evolution of the NAAQS levels since the current U.S. EPA administration started in January 2009, and we will continue to follow them closely and provide you with updates that we think are important to your operations.  The following sections provide updates on the most important NAAQS and how you can plan for them today.  Discusses SO2, ...


    By All4 Inc.

  • Control of malodors using Ecosorb - A natural product

    Abstract Ecosorb removes many malodors, including sulfur dioxide, hydrogen sulfide and ammonia, from the environment. It is made up of a combination of essential oils consisting of an equilibrium of neutral organic compounds and organic buffers. Its pH ranges from 4.0 to 6.8. Acidic malodors such as hydrogen sulfide and sulfur dioxide are removed by at least four mechanisms ...


    By OMI Industries (OMI)

  • When Capability is Critical

    The measurement and control of contaminants in natural gas pipeline systems are crucial to maintaining safe, reliable transport and consistent quality final product. Contaminants that require continuous analysis include total sulfurs (primarily hydrogen sulfide, or hLS), water vapour, carbon dioxide (C02) and heavier hydrocarbons (as hydrocarbon dew point temperature). The water ...

  • Continuous Monitoring of Odorous compounds in WWTP Sensory approach or Physico-chemical solution?

    In WWTP site managers are familiar with odor & chemical profile as they are exclusively focused on sulfur compounds measurement. These molecules are used as process drift indicators and offer a good criteria of process performance. Hydrogen Sulfide (H2S), Methyl Mercaptan (MM), Ethyl Mercaptan (EM), dimethyl sulfur (DMS) or Di-Methyl-di sulfur (DMDS), sulfur dioxide (SO2) provide a better ...


  • Time series analysis for the sulphur dioxide and particulate matter concentrations in the Aegean Region of Turkey

    Air pollution has temporal and spatial variability. Time series analysis is commonly used to evolution of air pollutants in time. The sulphur dioxide (SO2) and particulate matter (PM10) concentrations in the cities of the Aegean Region for the period of 1990–2009 have been modelled by using autoregressive (AR) and autoregressive moving ...


    By Inderscience Publishers

  • Measuring SO2 ship emissions with an ultraviolet imaging camera

    Over the last few years fast-sampling ultraviolet (UV) imaging cameras have been developed for use in measuring SO2 emissions from industrial sources (e.g. power plants; typical emission rates ~ 1–10 kg s−1) and natural sources (e.g. volcanoes; typical emission rates ~ 10–100 kg s−1). Generally, measurements have been made from sources rich in SO2 with high concentrations ...

  • Magnetic driven pumps in Molten sulphur service case study

    MD51EFDKR-3U88/06C with NORD SK12XZ-140TC and Reliance 2 HP, TEFC-XE motor Pumping Molten Sulphur is most challenging. Sulphur temperatures must be controlled within a 120-155o C range. Outside this temperature sulphur solidifies. Sulphur has a distinct odour and is highly corrosive in the presence of moisture. Where leakage from common packed style pumps was unacceptable, a ROTAN ...


    By DESMI A/S

  • SO2 NAAQS Implementation: The Great American Update

    Since the 1-hour sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS) became effective in August 2010, ALL4 has been tracking it every step of the way.  Its implementation has proven to be chaotic at times and quiet at others.  As we are ramping up into our air regulatory reporting obligations for 2014, U.S. EPA’s implementation of the ...


    By All4 Inc.

  • PSD and the Dreaded Major Modification

    The implementation at the state level of the major New Source Review (NSR) rules that include both prevention of significant deterioration (PSD) and nonattainment new source review (NNSR) have evolved over  a long period of time.   During the last decade that evolution has been substantially impacted by the ...


    By All4 Inc.

  • ADMS 5 Complex Terrain Validation Clifty Creek Power Plant

    1 Introduction The Cliffy Creek power plant1 is located in southern Indiana on the north side of the Ohio River (see Figure 1). The area immediately north of the facility is characterized by cliffs rising about 115 m above the river and intersected by creek valleys. The tops of the stacks extend about 80 to 100 m above the top of the cliffs on both sides of the river. Three ...

  • ADMS 5 Buildings & Complex Terrain Validation Baldwin Power Plant

    1 Introduction The Baldwin Power Plant1 (Hanna and Chang [3]) was located in a rural, flat terrain setting of southwestern Illinois, USA, and had three identical 184-m stacks aligned approximately north-south with a horizontal spacing of about 100 ni. There were 10 SO2 monitors that surrounded the facility, ranging in distance from 2 to 10 km. On-site meteorological data ...

  • Estonia eager to teach world about oil shale

    AUVERE, Estonia (AP) — Home to the creators of Skype and the first country to use online voting, Estonia relishes its image as a technological pioneer. But the tiny East European country's most far-reaching economic achievement could come from how it has learned to squeeze oil from a rock. About 200 feet (60 meters) below ground in northeastern Estonia, very close to the Russian border, ...


    By Associated Press

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